diff --git a/Cargo.lock b/Cargo.lock index 570a1ff16a..6fbac8b5ce 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -1123,8 +1123,6 @@ dependencies = [ [[package]] name = "redox_syscall" version = "0.3.5" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "567664f262709473930a4bf9e51bf2ebf3348f2e748ccc50dea20646858f8f29" dependencies = [ "bitflags 1.3.2", ] diff --git a/Cargo.toml b/Cargo.toml index 2c9b8d6e06..363159b803 100644 --- a/Cargo.toml +++ b/Cargo.toml @@ -39,3 +39,4 @@ lto = "fat" mio = { git = "https://gitlab.redox-os.org/redox-os/mio.git", branch = "redox-unix" } net2 = { git = "https://gitlab.redox-os.org/redox-os/net2-rs.git", branch = "master" } orbclient = { git = "https://gitlab.redox-os.org/redox-os/orbclient.git", version = "0.3.44" } +redox_syscall = { path = "../../kernel/source/syscall" } diff --git a/vesad/src/main.rs b/vesad/src/main.rs index 08046147ca..1b75efc0f4 100644 --- a/vesad/src/main.rs +++ b/vesad/src/main.rs @@ -112,7 +112,7 @@ fn inner(daemon: redox_daemon::Daemon, framebuffers: Vec, spec: &[b if packet.a == syscall::number::SYS_READ && packet.d > 0 && scheme.can_read(packet.b).is_none() { blocked.push(packet); } else { - scheme.handle(&mut packet); + scheme.do_handle(&mut packet); socket.write(&packet).expect("vesad: failed to write display scheme"); } @@ -122,7 +122,7 @@ fn inner(daemon: redox_daemon::Daemon, framebuffers: Vec, spec: &[b while i < blocked.len() { if scheme.can_read(blocked[i].b).is_some() { let mut packet = blocked.remove(i); - scheme.handle(&mut packet); + scheme.do_handle(&mut packet); socket.write(&packet).expect("vesad: failed to write display scheme"); } else { i += 1; diff --git a/vesad/src/scheme.rs b/vesad/src/scheme.rs index 20d1b45719..e63eea8852 100644 --- a/vesad/src/scheme.rs +++ b/vesad/src/scheme.rs @@ -1,7 +1,8 @@ use std::collections::BTreeMap; use std::{mem, ptr, slice, str}; -use syscall::{Error, EventFlags, EBADF, EINVAL, ENOENT, Map, O_NONBLOCK, Result, SchemeMut, PAGE_SIZE}; +use orbclient::{Event, EventOption}; +use syscall::{Error, EventFlags, EACCES, EBADF, EINVAL, ENOENT, Map, O_NONBLOCK, Result, SchemeMut, PAGE_SIZE, Packet, KSMSG_MMAP_PREP, KSMSG_MMAP, MapFlags, ESKMSG, SKMSG_PROVIDE_MMAP}; use crate::{ display::Display, @@ -213,6 +214,7 @@ impl SchemeMut for DisplayScheme { } } + /* fn fmap(&mut self, id: usize, map: &Map) -> Result { let handle = self.handles.get(&id).ok_or(Error::new(EBADF))?; @@ -226,14 +228,7 @@ impl SchemeMut for DisplayScheme { Err(Error::new(EBADF)) } - fn fmap_old(&mut self, id: usize, map: &syscall::OldMap) -> syscall::Result { - self.fmap(id, &Map { - offset: map.offset, - size: map.size, - flags: map.flags, - address: 0, - }) - } + */ fn fpath(&mut self, id: usize, buf: &mut [u8]) -> Result { let handle = self.handles.get(&id).ok_or(Error::new(EBADF))?; @@ -383,3 +378,51 @@ impl SchemeMut for DisplayScheme { Ok(0) } } +impl DisplayScheme { + pub fn do_handle(&mut self, packet: &mut Packet) { + match packet.a { + KSMSG_MMAP | KSMSG_MMAP_PREP => { + let off_lo = packet.uid; + let off_hi = packet.gid; + let req_off = u64::from(off_lo) | (u64::from(off_hi) << 32); + let req_flags = MapFlags::from_bits_truncate(packet.c); + let req_file_id = packet.b; + let req_page_count = packet.d; + + let is_lazy_mmap = packet.a == KSMSG_MMAP || req_flags.contains(MapFlags::MAP_LAZY); + + match self.mmap(req_file_id, req_flags, req_page_count * PAGE_SIZE, req_off) { + Ok(res) => if is_lazy_mmap { + packet.a = Error::mux(Err(Error::new(ESKMSG))); + packet.b = SKMSG_PROVIDE_MMAP; + packet.c = res; + packet.d = req_page_count; + + packet.uid = off_lo; + packet.gid = off_hi; + } else { + packet.a = Error::mux(Ok(res)); + }, + Err(err) => { + packet.a = Error::mux(Err(err)); + } + }; + + } + _ => self.handle(packet), + } + } + pub fn mmap(&mut self, id: usize, _flags: MapFlags, size: usize, off: u64) -> Result { + let handle = self.handles.get(&id).ok_or(Error::new(EBADF))?; + + if let HandleKind::Screen(vt_i, screen_i) = handle.kind { + if let Some(screens) = self.vts.get(&vt_i) { + if let Some(screen) = screens.get(&screen_i) { + return screen.map(off as usize, size); + } + } + } + + Err(Error::new(EBADF)) + } +}